X sometimes just suddenly crashes

[Michael Terry]

Binary package hint: xorg

Using oneiric. I'll be in the middle of something and X will just disappear, bringing me back to login screen. I haven't been able to determine a pattern.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xserver-xorg 1:7.6+4ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1366x768
 edid-base64: AP///////wAwZAMJAQEBASMTAQOAHRF4CoWVmVdPjyYhUFQAAAABAQEBAQEBAQEBAQEBAQEBux1W6lAAGTAjcFoAJ6YQAAAYAAAADwAC0ALQAAUBBUzUAg4AAAAA/gBUTURJU1BMQVkKICAgAAAA/gBMVDEzM0VFMDkxMDAKALI=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Tue May 31 08:07:29 2011
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
EcryptfsInUse: Yes
GraphicsCard:
 Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18) (prog-if 00 [VGA controller])
   Subsystem: CLEVO/KAPOK Computer Device [1558:3100]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110422)
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
MachineType: System76, Inc. Lemur UltraThin
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=0e585e80-16f1-404c-80cc-7d9805fcc3b0 ro quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/11/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: CALPELLACRB.86C.0000.X.0000000000
dmi.board.asset.tag: Tag 12345
dmi.board.name: Lemur UltraThin
dmi.board.vendor: System76, Inc.
dmi.board.version: lemu2
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: System76, Inc.
dmi.chassis.version: lemu2
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrCALPELLACRB.86C.0000.X.0000000000:bd11/11/2010:svnSystem76,Inc.:pnLemurUltraThin:pvrlemu2:rvnSystem76,Inc.:rnLemurUltraThin:rvrlemu2:cvnSystem76,Inc.:ct10:cvrlemu2:
dmi.product.name: Lemur UltraThin
dmi.product.version: lemu2
dmi.sys.vendor: System76, Inc.
version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.libdrm2: libdrm2 2.4.25-2ubuntu2
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu8
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

[Jean-Baptiste Lallement (jibel)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 774978, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.